Improvement in steam-generators



N. PETERS, PHOTO'LITHUGRAPHER. WASHKNGTON, D C.

UNITED STATES PATENT OFFICE.

GEORGE H. CORLISS, OF PROVIDENCE, RHODE ISLAND.

IMPROVEM ENT IN STEAM-G ENERATO RS.

Specification forming part of Letters Patent No. 36,28 l, dated August 26, 1862.

To aZZ whom. it may concern:

Be it known that I, GEORGE H. CORLISS, of

Providence, in the State of Rhode Island, have invented a new and useful Improvement in Steam Apparatus; and I do hereby declare the following to be a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in which- Figure l is a sectional elevation of a steamboiler with myimproved apparatus attached.

Fig. 2 is a plan or horizontal projection tached to the rear end of the boiler and is so constructed as to form a connecting-flue from the boiler to the chimney, and thus utilize the Waste heat. This generatoris connected with the surfacecondenser by an open pipe, B, of

, sufticient area to give a free passageof the steam. The generator is therefore relieved of the pressure to which itrwould be subjected if connected with the boiler, and in the position to which it is assigned is subjected to a comparativel y lovvr temperature, thus avoiding the formation of scale v A coil, C, Fig. 4, connected with the boiler by a pipe, D, is placed in the bottom of the generator, toincrease the evaporation whenever the heat of the flue may be insufficient. rIhe y water formed within this coil is saved by being conducted to the surfacecondenser by a pipe,

E. At F a valve is shown for regulating the supply-of water, and another valve at G for blowing off the saturated Water.

What I claim as my invention, andy desire to secure by Letters Patentfof the United States, is

1. A combination of a surface condenser with a supplementary generator which takes its heat from the flue leading to the chimney, for the purpose set forth.

2. 'Ihe combination of a surface-condenser,

a supplementary generator, and coil of steampipe, substantially as and for the purpose described. v

. GEO. H. kGORLISS. Witnesses: f

DE WITT C. LAWRENCE, R. L. CoBBs. 

